<div id="title">ĐĂNG KÝ MÔN HỌC</div>

<div id="logo_child">
    <img src="../image/source/logo_subject.png" />
</div>

<?php
    if(isset($_GET['function']))
    {
        $function = $_GET['function'];
        switch($function){
            case 'ds_lop': include('danhsach_dkmh.php'); break;
            case 'dieukhien': include('hieuchinhdkmh.php'); break;
            case 'them_lop': include('them_lop.php'); break;
            case 'xoa_lop': include('xoa_lop.php'); break;
            case 'chinhsua': include('sua_lop.php'); break;
        }
    }
        
?>